References for Exodus 11:3

4
So Moses said, "This is what the Lord says: 'About midnight I will go throughout Egypt

5
and every firstborn [male] in the land of Egypt will die, from the firstborn of Pharaoh who sits on his throne to the firstborn of the servant girl who is behind the millstones, as well as every firstborn of the livestock.

6
Then there will be a great cry of anguish through all the land of Egypt such as never was before, or ever will be again.

7
But against all the Israelites, whether man or beast, not [even] a dog will snarl,f so that you may know that the Lord makes a distinction between Egypt and Israel.

References for Exodus 11:7

8
All these officials of yours will come down to me and bow before me, saying: Leave, you and all the people who follow you.g After that, I will leave.' " And he left Pharaoh's presence in fierce anger.